Re: New F11 for XO-1.5 build 47
On Mon, Nov 30, 2009 at 7:21 AM, Chris Ball c...@laptop.org wrote: Hi Christoph, Hi, The power-management kicks in as expected however to wake the XO up again you actually have to press the power-button, hitting a key or moving the cursor doesn't wake it up (as it does on the XO-1). I think this is fixed in the new OHM in os48 -- could you retest, please? (Fixed using the same dance I described, but done programmatically inside OHM. Yuck.) Okay, will update to os48 either tonight or tomorrow and report back my findings. Also power-management doesn't seem to be activated when closing the lid (at least the power-LED doesn't indicate that it is). This one's only a problem with B2s. Good to know, thanks a lot for the information. Cheers, Christoph -- Christoph Derndorfer co-editor, olpcnews url: www.olpcnews.com e-mail: christ...@olpcnews.com ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: New F11 for XO-1.5 build 47
On Nov 29, 2009, at 1:21 PM, Tiago Marques wrote: On Sun, Nov 29, 2009 at 5:53 PM, Chris Ball c...@laptop.org wrote: Hi, You can also disable it using My Settings - Power - Automatic power management. (Cool, I didn't think that would work yet! But it does.) I also confirm that it disables well that way. /proc/cpuinfo isn't showing any change in processor clock to 400MHz, or anywhere below 1GHz. How can I confirm that it is underclocking? Try running powertop (yum install powertop), to see what amount of time the processor is spending in each C-state. The frequency scaling should be automatic as well. The C-7M is a strange beast, in that it already runs at minimum voltage (0.798V) constantly, and it scales the frequency continuously (since there are no corresponding voltage changes) as well. These are applied constantly --- the automatic power management turns on the more aggressive suspend resume using the display controller. Cheers, wad ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: New F11 for XO-1.5 build 47
On Mon, Nov 30, 2009 at 5:07 PM, John Watlington w...@laptop.org wrote: Try running powertop (yum install powertop), to see what amount of time We do have some powertop strangeness at play - http://dev.laptop.org/ticket/9630 The C-7M is a strange beast, in that it already runs at minimum voltage (0.798V) constantly, and it scales the frequency continuously (since there are no corresponding voltage changes) as well. Interesting. m -- martin.langh...@gmail.com mar...@laptop.org -- School Server Architect - ask interesting questions - don't get distracted with shiny stuff - working code first - http://wiki.laptop.org/go/User:Martinlanghoff ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: New F11 for XO-1.5 build 47
On Mon, Nov 30, 2009 at 4:07 PM, John Watlington w...@laptop.org wrote: On Nov 29, 2009, at 1:21 PM, Tiago Marques wrote: On Sun, Nov 29, 2009 at 5:53 PM, Chris Ball c...@laptop.org wrote: Hi, You can also disable it using My Settings - Power - Automatic power management. (Cool, I didn't think that would work yet! But it does.) I also confirm that it disables well that way. /proc/cpuinfo isn't showing any change in processor clock to 400MHz, or anywhere below 1GHz. How can I confirm that it is underclocking? Try running powertop (yum install powertop), to see what amount of time the processor is spending in each C-state. The frequency scaling should be automatic as well. The C-7M is a strange beast, in that it already runs at minimum voltage (0.798V) constantly, and it scales the frequency continuously (since there are no corresponding voltage changes) as well. These are applied constantly --- the automatic power management turns on the more aggressive suspend resume using the display controller. Hmmm... I see. So there won't be any interfaces to kernel ACPI power management like the rest of the laptop hardware out there? I thought that the XO 1.5 was going to support the regular ACPI stuff, hence my surprise. Best regards, Tiago Marques Cheers, wad ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: New F11 for XO-1.5 build 47
By the way, powertop was indeed showing it spending almost all cpu time in C4. Best regards On Mon, Nov 30, 2009 at 5:03 PM, Tiago Marques tiago...@gmail.com wrote: On Mon, Nov 30, 2009 at 4:07 PM, John Watlington w...@laptop.org wrote: On Nov 29, 2009, at 1:21 PM, Tiago Marques wrote: On Sun, Nov 29, 2009 at 5:53 PM, Chris Ball c...@laptop.org wrote: Hi, You can also disable it using My Settings - Power - Automatic power management. (Cool, I didn't think that would work yet! But it does.) I also confirm that it disables well that way. /proc/cpuinfo isn't showing any change in processor clock to 400MHz, or anywhere below 1GHz. How can I confirm that it is underclocking? Try running powertop (yum install powertop), to see what amount of time the processor is spending in each C-state. The frequency scaling should be automatic as well. The C-7M is a strange beast, in that it already runs at minimum voltage (0.798V) constantly, and it scales the frequency continuously (since there are no corresponding voltage changes) as well. These are applied constantly --- the automatic power management turns on the more aggressive suspend resume using the display controller. Hmmm... I see. So there won't be any interfaces to kernel ACPI power management like the rest of the laptop hardware out there? I thought that the XO 1.5 was going to support the regular ACPI stuff, hence my surprise. Best regards, Tiago Marques Cheers, wad ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: New F11 for XO-1.5 build 47
On Mon, Nov 30, 2009 at 7:21 AM, Chris Ball c...@laptop.org wrote: Hi Christoph, The power-management kicks in as expected however to wake the XO up again you actually have to press the power-button, hitting a key or moving the cursor doesn't wake it up (as it does on the XO-1). I think this is fixed in the new OHM in os48 -- could you retest, please? (Fixed using the same dance I described, but done programmatically inside OHM. Yuck.) Okay, waking up the XO-1.5 by moving the mouse or hitting a key now seems to work fine:-) Cheers, Christoph -- Christoph Derndorfer co-editor, olpcnews url: www.olpcnews.com e-mail: christ...@olpcnews.com ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: New F11 for XO-1.5 build 47
On 29/11/2009, at 5:36 PM, Chris Ball wrote: * Add OHM for XO-1.5 power management. To disable it, use touch /etc/ohm/inhibit-idle-suspend for the moment. You can also disable it using My Settings - Power - Automatic power management. This is almost essential on an XO-1.5 B2 without the WLAN power ECO if you want to test using a network. The automatic suspend takes out the WLAN. ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: New F11 for XO-1.5 build 47
On Sun, Nov 29, 2009 at 9:42 AM, James Cameron qu...@laptop.org wrote: On 29/11/2009, at 5:36 PM, Chris Ball wrote: * Add OHM for XO-1.5 power management. To disable it, use touch /etc/ohm/inhibit-idle-suspend for the moment. You can also disable it using My Settings - Power - Automatic power management. This is almost essential on an XO-1.5 B2 without the WLAN power ECO if you want to test using a network. The automatic suspend takes out the WLAN. Just a quick first impression: The power-management kicks in as expected however to wake the XO up again you actually have to press the power-button, hitting a key or moving the cursor doesn't wake it up (as it does on the XO-1). Also power-management doesn't seem to be activated when closing the lid (at least the power-LED doesn't indicate that it is). Christoph -- Christoph Derndorfer co-editor, olpcnews url: www.olpcnews.com e-mail: christ...@olpcnews.com ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: New F11 for XO-1.5 build 47
Hi Christoph, The power-management kicks in as expected however to wake the XO up again you actually have to press the power-button, hitting a key or moving the cursor doesn't wake it up (as it does on the XO-1). I think this is fixed in the new OHM in os48 -- could you retest, please? (Fixed using the same dance I described, but done programmatically inside OHM. Yuck.) Also power-management doesn't seem to be activated when closing the lid (at least the power-LED doesn't indicate that it is). This one's only a problem with B2s. Thanks, - Chris. -- Chris Ball c...@laptop.org One Laptop Per Child ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
